Sadly, the days of fans jammed onto the terraces like sardines will never comeback.
The days of 38000 at HP or thinking of last Saturday, 16000 at Plainmoor to see Argyle in an old Division 3 game are long gone. The mini-kop stand behind the goal at what is now the Swimming Pool end would be absolutely rammed and you struggled to breathe because you were being crushed. Happy memories from the good days.
Safe seating is going to happen, it's only a matter of when but it should be happening now. Unfortunately, it's something else which has become politically sensitive so it's taking longer than it needs to.
However, safe standing will do little if anything to increase capacity and each standing space will probably be controlled and allocated as per the seats are now.